代码实现

<template>
    <div>
        <div class="f_mean" v-if="data">
            域名aa.com显示的内容
        </div>
        <div class="f_mean" v-else>
            域名bb.com显示的内容
        </div>
    </div>
</template>
<script>
 export default {
    data() {
        return {
            data: true,
        };
    },
    mounted() {
        this.data = location.host.includes('aa')
    },
    methods: {

    },
};
</script>